278323167

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{127}}^1\times {\mathrm{443}}^1$

素因数の和:687

約数の個数: 32

約数和(自身を含む): 401006592

約数和(自身を除く): 122683425

約数列:

[1, 3, 17, 51, 97, 127, 291, 381, 443, 1329, 1649, 2159, 4947, 6477, 7531, 12319, 22593, 36957, 42971, 56261, 128913, 168783, 209423, 628269, 730507, 956437, 2191521, 2869311, 5457317, 16371951, 92774389, 278323167]

約数ペア:

[(1, 278323167), (3, 92774389), (17, 16371951), (51, 5457317), (97, 2869311), (127, 2191521), (291, 956437), (381, 730507), (443, 628269), (1329, 209423), (1649, 168783), (2159, 128913), (4947, 56261), (6477, 42971), (7531, 36957), (12319, 22593)]